Improved machine foe making carriage bolts



= w. KOPLIN. MACHINE FOR MAKING CARRIAGE BOLTS.

No. 62,963. I Patented Mar. 19, 1867-.

Wzzesses:

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IMPROVED MAGHINEFOR MAKING CARRIAGE BOLTS.

digs fidgchnln when it in tlnse'itctters @Qatmt initiating imttflf flgttlmtt TO ALLJYIIQLI" In: MAyf'eoNeERm v j I V it 'knowni that I, WILLTAM KQPLIN, of Newcastle, in thecounty-of Lawrence, and State of Pennsylvania, have invented a new and improved Machine for Making Carriage-Bolt Blanks; and l ds hereby declare the followingto be a full, clear, and exact description of the same, suilieicnt to enable any one skilled in the art to which the invention appertains, to make use of it, reference being bad to the accompanying drawings,-\whieh form a part of this spccificatiomand in which'-' Figure 1 is a top view or plan. Figure 2-is a side elevation,

Figure 3 is a front elevation.

Figure 4 is. a perspective view of theniovi'ng carriage, with its set of dics.

Figure 5 is a view ofthe stationary die-holder, and dies monnteditherein.

Figure 6 is a section -to illustrate thc'relativo positions of the'pointcr and cutter.

This'machinc cuts off a suitable length of bar, grasps and points it, upsets it,iso as to form c square portion between the head and .the thread, larger in diameter than 't'helattor, and lastly, swagcs a raised head, com pleting the bolt blank, which is discharged by'a book, which drags it from its bed and drops itto the'ground.

' In the drawings, A represents the bed of the machine, from which rise standards 133,0 C, D D. The standards Bafi'ord support for the main shaft E, 'in which are the cams, four in number, which g ive the suitable motions to tho swages, acting" upon the heated iron rod The standards 0 supportthe swage which upsets and heads the bolt. The standards D support the frame or lever F which carries the pointer G, the swage H, and the su agc I, whose purpose will be presently explained. The stationary jaw, J, holding certain dies, is atta'ched'to the frame or bed A, and the'moving jaw K, with counterpart dies .and a'cutt'er, is journalled at-L.

lheoperation of the machine is as follows: The heated iron rod'is introdueed bc't'w'een the. recessed faces at the dies in the respective jaws,.and extends tothc faced of'th: "ha der. The main shaft E is rotated, and

v the earn O,-aeting by means of the arm M, and shaft N, upon the jaw K, causes'th e latter to approach the stationary jaw J. The cutter ev first comes ,in conta'ct'with the iron and cuts ofi the piece, whichis then grasped bctwecn'tho dies a a b b,which are placed in the respective jaws J K; the dies 6 bmerely hold it tightly, but the dies a a reduce its size somewhat, in connection with the descending pointer G. The lever F, jonrnallcd in the standards, is vibrated by means of the cam P, on the main shaft E, and,'as it descends, the pointer G,

moving in an arc of'a circle, pushes out thc'point of the bolt into the recess 9', as shown in fig. 6, behind the edge of the cutter, the point-of the swage G-protruding into the said recess so as torenjder it necessary that thcpointer should be again raised before the cutter is retracted. I It is necessary that the bolt should have an enlarged squntre portion bcneaththe head, and this is formed between the dlGSl; a on the jaws J K, and the descending swages H on the lever F.. The shank of the bolt being heldbetween the dies a a b b, and the space between the dies 0 0' being larger'than' the iron,.'th'c header d is operated by the cam Q, on the main shaft E, and pressing against the end of the rod shortens and upsets it, causing'it to swell in'thc space between, the dies 0 c. The die 0 is brought against one. side of the-bolt by the swage I, and the descending swage H presses. against thc uppcr surface, giving a square form to that portion of the bolt, after which the header 0? being further advanced by the cam R, the head is formed of a shape corresponding to the form of the recess in the header face. The main shaft being further revolved, the lever F is raised by the spring S, the headcrwi thdrawn by the Spring T, and the jaw] opening, the bolt is withdrawn by the hook W, and dropped upon the round. g Having described my invention, what-I claim as new, and desire to'seeure by Letters Patent, rat-- 1. The combination, with the dies a a b b, of the dies 0 H, operated as described to form'the square on he bolt. j

2. The die 0, in combination with the swage I, on the lever F, operated as described. To the above specification of my improvement in machines for making carriage bolts I have signed nly hand this fourteenth day of July, 1866. 1 WM. KOPLIN' Witnesses:

Jns. L. Ewm, EDWARD H. Knrciir. 

